SYNOPSIS

DESCRIPTION

Sends a SAS Management Protocol (SMP) REPORT ROUTE INFORMATION function to
a SMP target. The SMP target is identified by the SMP_DEVICE and the
SAS_ADDR. Depending on the interface, the SAS_ADDR may be
deduced from the SMP_DEVICE. With one interface there is one
SMP_DEVICE per machine so the SMP_DEVICE,N syntax is needed to
differentiate between HBAs if there are multiple present.

Each phy in a SAS expander that has an associated routing attribute
of "table" has a router table. The number of rows (or entries) in
each router table is given by the "expander route indexes" field
in the response of the REPORT GENERAL function.

When the --multiple option is given, the REPORT ROUTE INFORMATION
function is called multiple times. The index value increments on
each iteration, starting from --index=IN (default 0). If
--num=NUM is given and NUM is greater than zero then that is
the maximum number of iterations performed. If --num=NUM is not
given (or NUM is zero) then iterations continue until there are 4
adjacent disabled route entries (or some error is detected).

OPTIONS

Mandatory arguments to long options are mandatory for short options as well.

-h, --help

output the usage message then exit.

-H, --hex

output the response in hexadecimal.

-i, --index=IN

expander route index. IN is a value between 0 and 65535. Default is 0.
More precisely the maximum index value is (expander_route_indexes - 1).

-I, --interface=PARAMS

interface specific parameters. In this case "interface" refers to the
path through the operating system to the SMP initiator. See the smp_utils
man page for more information.

-m, --multiple

call the REPORT ROUTE INFORMATION function multiple times, starting at
--index=IN, incrementing the index value on each iteration for a
maximum of --num=NUM iterations. For each enabled route table entry,
one line is output. If --num=NUM is not given (or NUM is zero)
then iterations continue until 4 adjacent disabled entries are found (or
some error occurs).

-n, --num=NUM

used with --multiple option to specify the maximum number of
iterations.

-p, --phy=ID

phy identifier. ID is a value between 0 and 127. Default is 0.

-r, --raw

send the response to stdout in binary. All error messages are sent to stderr.

-s, --sa=SAS_ADDR

specifies the SAS address of the SMP target device. Typically this is an
expander. This option may not be needed if the SMP_DEVICE has the
target's SAS address within it. The SAS_ADDR is in decimal but most
SAS addresses are shown in hexadecimal. To give a number in hexadecimal
either prefix it with '0x' or put a trailing 'h' on it.

-v, --verbose

increase the verbosity of the output. Can be used multiple times.

-V, --version

print the version string and then exit.

CONFORMING TO

The SMP REPORT ROUTE INFORMATION function was introduced in SAS-1 .
The "Expander change count" field was added in SAS-2 .